interface _CD_ {
    /**
     * 随机颜色
     * @returns 颜色值
     */
    randomColor(): string;
}
{
    Object.defineProperty(_CD_.prototype, 'randomColor', {
        writable: false,
        configurable: false,
        enumerable: false,
        value: () => {
            return '#' + U.S.fillEnd(Math.random().toString(16).substring(2, 8), 6, '0');
        }
    });
}
